Barrel-filter.



PATENTED MAR. 10, 1903..

H. R. GASSEL. BARREL FILTER. APPLIOATIOXHLBD Nov. zo. 1902.

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H0 MODEL.

I- Kl UNITED STATES f PATENT EEICE.

EEN-EY R. oAssEL, or NEW YORK, N. Y.

BARREL-FILTER.

SPECIFICATION' forming part of Letters Patent No. 722,399, dated March 10, 1903.

Application filed November 20, 1902. Serial No. 132,061. (No model.)

T0 all whom t r11/ay con/cern.-

Be it known that I, HENRY R. CASsEL,a citizen of the United States, residing at New York city, (Manhattam) county and State of New York, have invented certain new and useful Improvements in Barrel-Filters, of which the following is a specification.

This invention relates to an improved barrel-filter of the type generally used in the chlorination or lixiviation of ores.

My improved iilter is so constructed that it will readily sustain the pressure of the ore within the rotating barrel, that it is not liable to become displaced or detached during use, and that it may be readily repaired.

In the accompanying drawings, Figure 1 is a longitudinal section of myimproved barrellter; Fig. 2, a cross-section on line 2 2, Fig. 1; Fig. 3, a horizontalsection of part of the filter on line 3 3, Fg.2; Fig. 4, a longitudinal section of one of the transverse bars; Fig. 5, a similar section through one of the longitudinal bars; Fig. 6, an enlarged longitudinal section through one of the fillingtubes. Figs. 7 and S are cross-sections through modifications of the filter, and Fig. v9 a horizontal section through a further modification.

The letter a represents a rotatable ore-barrel, provided with a lead lining a aud supported by trunnions a2 upon suitable bearings b.

as represents the usual manholes.

cv* is the water-inlet cock, and a5 the discharge-cock- Withinthe barrel a, there is secured a filter, which is incased in lead, the lead casing of the filter being burned to the lead lining of the barrel. In this Way the filter is made integral with the barrel-lining, so that it is held in position Without additional supporting means, While, furthermore, creeping of ma-` terial between barrel and filter is entirely prevented.

The filter is composed, preferably, of two rows of intersecting bars crossing each other at or about at right angles, each bar being formed of a rigid core and of a surrounding lead casing, which is burned to the barrellining.

c c represent the cores of the lower or transverse bars, the threaded ends of which pass through perforations of barrel a and are removably secured thereto by nuts c. Obviously, however, the cores may be made in the shape of screw-bolts, with a thread upon one end only. The cores c are surrounded by the lead casings or sleeves c2, the ends of which are preferably flanged, as at c3, so that the casing may be readily burned to and thus made integral with the lining a.

The upper or longitudinal bars of the filter pass through the heads of the barrel and are made in all respects similar to the transverse bars. They are composed of the rigid threaded cores d, carrying nuts d', and of the lead casings da, having flanges cl3, which are burned to the lining of the barrel-heads.

In order to reduce the size of the sieve mesh, I may place upon the lower bars and intermediate the upper bars a number of perforated lead filling-tubes e, the flanged ends e2 of which are also burned to the lining 0.'. The tubes e may be filled with coarse gravel or sand e', thatacts as a filter and at the same time as a sustaining-core for the tubes.

The longitudinal lead tubes d2 and e are burned to the transverse tubes c2 at each point of intersection. So, also, may the tubes e be burned to the tubes cl2 at suitable points bya small intermediate lead lling f. In this way the entire lead casing of the lter is made in one piece and integral withrthe barrel-lining a. The solid structure thus formed is capable of resisting all the pressure necessary forrfiltering the ore without requiring the use'of any additional supporting means.

The shape of the lter mayV obviously be varied. Thus I have shown in Fig. 2 a horizontal filter, while the filter shown in Fig. 7 is convex and that shown in Fig. 8 is concave.

In Fig. 9 the filter is covered with perforated lead plates g, burned to one another and to the lining a.

1. A barrel-filter composed of a barrel having a lead lining, and of a filter having rigid cores and surrounding lead casings made integral with the lining, Vsubstantially as specified.

2. A barrel-filter composed of a barrel having a lead lining, and of a ilter having rigid intersecting cores and surrounding intersecting lead casings which are made integral with ing a lead lining, and of a lter composed of cores, surrounding lead casings, and hollow i5 vperforated lling-tnbes, said easings and tubes being made integral with the lining, substantially as specified.

Signed by ine an New York city, (Manhattan,) New York, this 18th day of November, 2o 1902.

HENRY R. CASSEL.

Witnesses:

WILLIAM SCHULZ, FRANK v. BRIESEN. 

